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A good disinfectant
- Should be persistent enough to prevent re-growth of organisms in the distribution system.
- Must be toxic to micro-organisms at concentrations well above the toxic thresholds of humans and higher animals.
- Should have a fast rate of kill of micro-organisms.
Select the correct answer using the codes given below:
- a)i and ii only
- b)i, ii and iii
- c)ii and iii only
- d)i and iii only
Correct answer is option 'D'. Can you explain this answer?
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A good disinfectant Should be persistent enough to prevent re-growth o...
Factors to Consider in Selecting a Good Disinfectant
i) Persistence in preventing re-growth of organisms in the distribution system.
ii) Toxicity to micro-organisms at concentrations well above the toxic thresholds of humans and higher animals.
iii) Fast rate of kill of micro-organisms.
Among these factors, options D (i and iii only) is the correct answer.
Explanation:
i) Persistence in preventing re-growth of organisms in the distribution system:
A good disinfectant should be persistent enough to prevent the re-growth of organisms in the distribution system. This means that it should have a long-lasting effect and continue to kill and inhibit the growth of micro-organisms even after the initial application. This is important to ensure that the distribution system remains free from harmful bacteria and other pathogens.
ii) Toxicity to micro-organisms at concentrations well above the toxic thresholds of humans and higher animals:
A good disinfectant should be toxic to micro-organisms at concentrations that are well above the toxic thresholds of humans and higher animals. This means that it should effectively kill harmful bacteria and pathogens without causing harm to humans or other animals. It is important to find a balance where the disinfectant is potent enough to eliminate micro-organisms but not harmful to the health of humans and higher animals.
iii) Fast rate of kill of micro-organisms:
A good disinfectant should have a fast rate of kill of micro-organisms. This means that it should act quickly to eliminate harmful bacteria and pathogens upon contact. A fast rate of kill ensures that the disinfection process is efficient and effective in reducing the risk of disease transmission.
Considering these factors, the correct answer is option D (i and iii only). The disinfectant should be persistent enough to prevent re-growth of organisms in the distribution system (i) and have a fast rate of kill of micro-organisms (iii). The second factor (ii) is not necessary for a good disinfectant as long as it is non-toxic to humans and higher animals.
i) Persistence in preventing re-growth of organisms in the distribution system.
ii) Toxicity to micro-organisms at concentrations well above the toxic thresholds of humans and higher animals.
iii) Fast rate of kill of micro-organisms.
Among these factors, options D (i and iii only) is the correct answer.
Explanation:
i) Persistence in preventing re-growth of organisms in the distribution system:
A good disinfectant should be persistent enough to prevent the re-growth of organisms in the distribution system. This means that it should have a long-lasting effect and continue to kill and inhibit the growth of micro-organisms even after the initial application. This is important to ensure that the distribution system remains free from harmful bacteria and other pathogens.
ii) Toxicity to micro-organisms at concentrations well above the toxic thresholds of humans and higher animals:
A good disinfectant should be toxic to micro-organisms at concentrations that are well above the toxic thresholds of humans and higher animals. This means that it should effectively kill harmful bacteria and pathogens without causing harm to humans or other animals. It is important to find a balance where the disinfectant is potent enough to eliminate micro-organisms but not harmful to the health of humans and higher animals.
iii) Fast rate of kill of micro-organisms:
A good disinfectant should have a fast rate of kill of micro-organisms. This means that it should act quickly to eliminate harmful bacteria and pathogens upon contact. A fast rate of kill ensures that the disinfection process is efficient and effective in reducing the risk of disease transmission.
Considering these factors, the correct answer is option D (i and iii only). The disinfectant should be persistent enough to prevent re-growth of organisms in the distribution system (i) and have a fast rate of kill of micro-organisms (iii). The second factor (ii) is not necessary for a good disinfectant as long as it is non-toxic to humans and higher animals.
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A good disinfectant Should be persistent enough to prevent re-growth of organisms in the distribution system. Must be toxic to micro-organisms at concentrations well above the toxic thresholds of humans and higher animals. Should have a fast rate of kill of micro-organisms.Select the correct answer using the codes given below:a)i and ii onlyb)i, ii and iiic)ii and iii onlyd)i and iii onlyCorrect answer is option 'D'. Can you explain this answer?
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